test_bug809652.js - mozsearch

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/* See https://bugzilla.mozilla.org/show_bug.cgi?id=813901 */

const TypedArrays = [ Int8Array, Uint8Array, Int16Array, Uint16Array,

                      Int32Array, Uint32Array, Float32Array, Float64Array,

                      Uint8ClampedArray ];

// Make sure that the correct nativecall-y stuff is denied on security wrappers.

function run_test() {

  var sb = new Cu.Sandbox('http://www.example.org');

  sb.obj = {foo: 2};

  /* Set up some typed arrays. */

  sb.ab = new ArrayBuffer(8);

  for (var i = 0; i < 8; ++i)

    new Uint8Array(sb.ab)[i] = i * 10;

  sb.ta = [];

  TypedArrays.forEach(f => sb.ta.push(new f(sb.ab)));

  sb.dv = new DataView(sb.ab);

  /* Things that should throw. */

  checkThrows("Object.prototype.__lookupSetter__('__proto__').call(obj, {});", sb);

  sb.re = /f/;

  checkThrows("RegExp.prototype.exec.call(re, 'abcdefg').index", sb);

  sb.d = new Date();

  checkThrows("Date.prototype.setYear.call(d, 2011)", sb);

  sb.m = new Map();

  checkThrows("(new Map()).clear.call(m)", sb);

  checkThrows("ArrayBuffer.prototype.__lookupGetter__('byteLength').call(ab);", sb);

  checkThrows("ArrayBuffer.prototype.slice.call(ab, 0);", sb);

  checkThrows("DataView.prototype.getInt8.call(dv, 0);", sb);

  /* Now that Date is on Xrays, these should all throw. */

  checkThrows("Date.prototype.getYear.call(d)", sb);

  checkThrows("Date.prototype.valueOf.call(d)", sb);

  checkThrows("d.valueOf()", sb);

  checkThrows("d.toString()", sb);

  /* Typed arrays. */

  function testForTypedArray(t) {

    sb.curr = t;

    sb.currName = t.constructor.name;

    checkThrows("this[currName].prototype.subarray.call(curr, 0)[0]", sb);

    checkThrows("(new this[currName]).__lookupGetter__('length').call(curr)", sb);

    checkThrows("(new this[currName]).__lookupGetter__('buffer').call(curr)", sb);

    checkThrows("(new this[currName]).__lookupGetter__('byteOffset').call(curr)", sb);

    checkThrows("(new this[currName]).__lookupGetter__('byteLength').call(curr)", sb);

  sb.ta.forEach(testForTypedArray);

function checkThrows(expression, sb) {

  var result = Cu.evalInSandbox('(function() { try { ' + expression + '; return "allowed"; } catch (e) { return e.toString(); }})();', sb);

  dump('result: ' + result + '\n\n\n');

  Assert.ok(!!/denied/.exec(result));